Besides Transformer Memory Network (TMN) [1]} and Disentangled Response Decoder (DRD) [2]}, we also compare the pre-trained models with Incremental Transformer with Deliberation Decoder (ITDD) [3]} and Posterior Knowledge Selection (PostKS) [4]} on automatic metrics. Table REF  reports the evaluation results. Basically, the conclusions we have drawn in the main paper still hold here.
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